The Shimano HG93 chain is their XT level 9 speed chain designed for use with Hyperglide cassettes and chainrings. It is compatible with both mountain and road (Ultegra level 9 speed drivetrains) and it has 116 Zinc-alloy plated links.
If 8 is not enough and 10 is too many, you need 9 speed drivetrain parts.
I've used these chains for years and only have 1 blow out on me and I might have installed wrong. The chains go a long time without stretching. The links are smooth and don't kink. They are not noisy if lubed properly.
I switched my drive train to a single ring 9 speed. Other brands didn't cope with the big angles but this chain has been great. No problems and with the right tool they are really easy to take off to clean. I highly recommend these chains.
Do not buy a Shimano chain if you are an "aggressive" rider before you check out the www.mtbr.com. I'm an older rider but one who still likes to race up the trails but will no longer trust Shimano chains. My Shimano HG93 chain came with my newly purchased Price Point high quality MTB bike. Within the first hundred miles of aggressive MTB ridding, the chain broke bending the derailleur arm and requiring about an hour for a temporary repair to avoid an eight mile walk back. It took several hours more to fine tune the derailleur and repair the chain, replacing the bent link using Shimano replacement pins as per data sheet. The chain broke three more times within the next four months fortunately though, w/o damaging the derailleur. Finally, I went to online reviews, www.mtbr.com, and found that almost all "aggressive" riding MTB reviewers had similar experiences with their Shimano chains including the XTR's. This chain does seem to work fine for the non aggressive riders so I gave it two stars. Mtbr.com reviewers recommended Connex and Yaban chains. I have had no experience with either. Pricepoint has always offered excellent service during the several years I have purchased bikes, replacement parts and supplies and did offer to replace the chain even through the fault is Shimano's and not Pricepoint's. wd